A stylized, glowing, multifaceted red and orange crystal emblem on a deep warm brown card back with an ornate gold border.

Card back design for a crime/espionage-themed card game, deep warm brown background, central chunky multifaceted crystal emblem with sharp geometric edges, layered 3D appearance, dramatic lighting casting subtle shadows and highlights, reflective surfaces on crystal, flat-shaded colors, mid-detail textures, clean edges, subtle atmospheric mist behind emblem, symmetrical layout, ornate but minimal border details in muted tones, Archer TV show style, graphic novel style, portrait orientation, elegant and mysterious, visually balanced for card back, no text or icons, centered emblem focus See more